PPT Slide

Phi detector design

Current problems:

• only single hit clusters, resolution d/?12 for r-detector: resolution < 0.6?d/?12

• large strip pitch, up to 140 mm

• stereo angle doesn’t match resolution of r-detector

New design:

• stereo angle +22o inner, -10o outer

• inner / outer, r=15mm, equal occupancy

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